When It Comes to Heart Health, Science Says Your Blood Type Matters - CNET

People with type O blood might be less susceptible to heart disease and blood clots than those with type A or B.

Naeblys/Getty Images Do you know your blood type?  You wouldn't know it by looking on the surface, but coursing through your veins every second of every day are tiny variations that categorize your… [+5770 chars]

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